Home / 65,729.30-98,421.15-48,103.70

Finding the Fourth Proportional to 65,729.30, 98,421.15 and 48,103.70

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Solution

The fourth proportional to 65,729.30, 98,421.15 and 48,103.70 is: 72,029.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,729.30 : 98,421.15 = 48,103.70 : x
  2. Step 2: Convert to fraction form
    65,729.30/98,421.15 = 48,103.70/x
  3. Step 3: Cross multiply
    65,729.30x = 98,421.15 × 48,103.70
  4. Step 4: Simplify right side
    65,729.30x = 4,734,421,473.26
  5. Step 5: Solve for x
    x = 4,734,421,473.26/65,729.30
  6. Step 6: Final answer
    x = 72,029.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.